The 24-year-old singer said he used to "cringe" if he hit a flat note, but has now realised his "energy" can make things work and vocals are not as important in live as they are in the recording studio, reported Female First.
"It's something I've been trying to tackle over this past year. ... When I first started rehearsing for my first tour last year, I would get discouraged -- 'Why were my vocals not 100 percent pitch perfect?'
"It's totally normal, but it bothered me. I used to cringe on stage when I would hit a flat note, but I've learned that doing things live is a lot more forgiving than doing things in the studio. It's all about the energy live, and that can make up for the imperfections that might not be on the records," Puth said.